CN2763875Y

CN2763875Y - Circuit board fixator

Info

Publication number: CN2763875Y
Application number: CNU2004201022565U
Authority: CN
Inventors: 刘建忠; 范振炉; 陈丽萍
Original assignee: Hongfujin Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Current assignee: Hongfujin Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Priority date: 2004-11-30
Filing date: 2004-11-30
Publication date: 2006-03-08
Anticipated expiration: 2014-11-30
Also published as: US20060114662A1; US7385830B2

Abstract

The utility model discloses a circuit board fixer for fixing a circuit board provided with a plurality of perforations, which comprises a loading board and a plurality of elastic sheets arranged on the circuit board, wherein the loading board is provided with a plurality of fixing poles corresponding to the perforations of the circuit board; each elastic sheet comprises an installing part and a first bending part which is obliquely bended and extended upward from one end of the installing part; the elastic sheets are provided with fixing holes corresponding to the perforations of the circuit board; the fixing holes are extended to the first bending parts from the installing parts, and are used for buckling the fixing poles. The utility model is not only convenient to install the circuit board, but also has the advantages of simple structure and low cost.

Description

Circuit board fixing device

[technical field]

The utility model relates to a kind of circuit board fixing device, particularly a kind of circuit board fixing device that is applied in computer or the server.

[technical background]

Circuit board in general computer or the server, as mainboard, be directly to lock in a computer casing mostly by screw, a kind of mainboard locating device as No. 00201452.1 announcement of Chinese patent, it mainly is to establish some convex bodys on the base of cabinet, offer screw on the convex body, and the screw of corresponding described convex body is offered some perforation on the mainboard.In the time of fixedly, directly pass the perforation of mainboard and lock in the screw of corresponding convex body, just mainboard can be fixed on the base of cabinet by screw.But, this fixed form is because a large amount of use screws, often makes the assembling of circuit board very consuming time, inefficiency, so and the installation of inconvenient circuit board.

For improving the packaging efficiency of circuit board, industry provides a kind of circuit board fixing device that does not have screw again, as a kind of mainboard fixed mechanism that Chinese patent discloses for No. 02231300.1, it mainly is to utilize the combination of a cramp, a slide plate and an elastic parts to fix mainboard.One end of described cramp has a square groove, and a grab is established in the middle part.Described slide plate only can be offered a draw-in groove to slip by folk prescription on it on the base of housing.One end of described elastic parts is fixed on the base of housing, and the other end is fixed on the slide plate.Fixedly during mainboard, make square groove prop up the edge of mainboard the cramp rotation, simultaneously, grab is kept the buckle state with the draw-in groove fastening and by elastic parts, thereby mainboard is fixed on the base.And when dismounting only need promote slide plate, and grab and draw-in groove are broken away from, and cramp reverse rotation and from the disengagement of the edge of mainboard just can be taken off mainboard from housing.Though this fixed mechanism makes things convenient for the assembling of mainboard,, owing to its complex structure, can increase the assembly cost of mainboard.

[summary of the invention]

Technical problem to be solved in the utility model provides a kind of simple in structure and make things convenient for the fixing circuit board fixing device of circuit board.

For solving the problems of the technologies described above, the utility model is achieved through the following technical solutions: the utility model circuit board fixing device is to be used for fixing one to offer the circuit board of some perforation, and it comprises a loading plate and some shell fragments that is installed on the circuit board.The plurality of fixed post is established in the perforation of described loading plate corresponding circuits plate.Described shell fragment comprises that an installing department and an end from installing department bend first kink of extension obliquely, and the perforation of described shell fragment corresponding circuits plate is offered one and extended to first kink and be used for the fixed orifice of the described fixed leg of buckle from installing department.

The utility model circuit board fixing device fixes circuit board by the very simple shell fragment of structure, can not only improve the packaging efficiency of circuit board, and cost is extremely low.

[description of drawings]

Fig. 1 is the three-dimensional exploded view of the utility model circuit board fixing device.

Fig. 2 is another stereographic map of shell fragment among Fig. 1.

Fig. 3 is the three-dimensional assembly diagram of Fig. 1.

Fig. 4 is the dismounting synoptic diagram of Fig. 3.

Fig. 5 and Fig. 6 are the stereographic maps of other two kinds of embodiments of shell fragment.

Side view when Fig. 7 is the shell fragment fixing circuit board of Fig. 5.

Side view when Fig. 8 is the shell fragment fixing circuit board of Fig. 6.

[embodiment]

Please refer to Fig. 1 and Fig. 2, the utility model circuit board fixing device is by some shell fragments 30 circuit board 10 to be fixed on the loading plate 20 of a casing.

Offer some perforation 12 on the described circuit board 10.One side of described perforation 12 is offered two pilot holes 14, and opposite side is offered a through hole 16.Described circuit board 10 is established a ground lug 18 on the position of next-door neighbour's through hole 16.

Plurality of fixed post 22 is established in the perforation 12 of described loading plate 20 corresponding circuits plates 10, described fixed leg 22 comprise a bottom 222, from the bottom 222 upwardly extending necks 224 and from neck 224 upwardly extending heads 226.Between the diameter of the diameter of described neck 224 less than the diameter of bottom 222 and head 226.Described bottom 222 can be used to support circuit plate 10, and described neck 224 and head can slide in the perforation 12 of circuit board 10.

Described shell fragment 30 comprises that installing department 32, the end from installing department 32 of a level bend first kink 34 of extension, second kink 36 and that bending is extended under an end of first kink 34 is oblique obliquely from the horizontally extending extension 38 of an end of second kink 36.Offer a fixed orifice 35 that extends to first kink 34 on the described installing department 32, described fixed orifice 35 comprises an entrance hole 352 and a block button hole 354.The head 226 of described fixed leg 22 can pass entrance hole 352, and the neck of described fixed leg 22 can be buckled in the block button hole 354.Described installing department 32 bends the extension two prominent tips 322 downwards in an edge of entrance hole 352.Described second kink 36 dashes downwards establishes a L shaped and terminal horizontal spacer 39.Described extension 38 dashes downwards establishes two projectioies 382.

Please continue with reference to Fig. 3 and Fig. 4, during assembling, spacer 39 be inserted in the through hole 16 of circuit board 10, and the prominent tip 322 of shell fragment 30 is inserted in the pilot hole 14 of circuit board 10, thereby shell fragment 30 is clamped on the circuit board 10.The fixed leg 22 of loading plate 20 is inserted in the entrance hole 352 of fixed orifice 35 of the perforation 12 of circuit board 10 and shell fragment 30.At this moment, circuit board 10 is supported on the bottom 222 of fixed leg 22, and the head 226 of fixed leg 22 exposes the installing department 32 of shell fragment 30.Promote circuit board 10 it slided on loading plate 20, fixed leg 22 will be relatively slip in the fixed orifice 35 of the perforation 12 of circuit board 10 and shell fragment 30.When fixed leg 22 when entrance hole 352 slides to block button hole 354, it is first kink 34 of extrusion elastic 30, shell fragment 30 downward elastic deformations, extension 38 stretches out.Projection 382 on the extension 38 contacts with ground lug 18 on the circuit board 10.When the neck 224 of fixed leg 22 slips into and is buckled in the block button hole 354, the holding force that elastic deformation by shell fragment 30 produces just can be clamped in circuit board 10 between the bottom 222 and head 226 of fixed leg 22 tightly, and then circuit board 10 is fixed on the loading plate 20.

During dismounting, only need to promote circuit board 10 in the other direction, when the head 226 relative circuit boards 10 of fixed leg 22 slide in the entrance hole 352, just can take off circuit board 10 along sliding.

The utility model also can cooperate the circuit board 10 that locks with a screw (figure does not show), and so more stably fixing circuit board 10.

Shell fragment

30a, 30b shown in Fig. 5 to Fig. 6 is other two kinds of embodiments of shell fragment 30, the difference of itself and shell fragment 30 only is: shell fragment 30a is bent to form a surface level 33a at block button hole 354a place, and shell fragment 30b then forms an inclined downward 33b at block button hole 354b place.After circuit board 10 was fixing, the head 226 of fixed leg 22 was positioned on described plane 33a or the inclined-plane 33b, as shown in Figures 7 and 8, can increase the resistance of 22 of

shell fragment

33a, 33b and fixed legs like this, thereby needn't be by just fixing circuit board 10 stably of screw.

In addition, because the projection 382 on the extension 38 contacts with ground lug 18 on the circuit board 10, and shell fragment 30 is connected with fixed leg 22, and like this, circuit board 10 just can pass through shell fragment 30 and fixed leg 22 ground connection, and ground connection is respond well.

Claims

1. circuit board fixing device, be used for fixing one and offer the circuit board of some perforation, it comprises that the perforation of a corresponding circuit board establishes the loading plate of plurality of fixed post, it is characterized in that: described circuit board fixing device also comprises some shell fragments that are installed in the perforation top of circuit board, described shell fragment comprises an installing department and from an end of installing department first kink that extends of bending upwards, and the perforation of described shell fragment corresponding circuits plate is offered one and extended to first kink and be used for the fixed orifice of the described fixed leg of buckle from installing department.

2. circuit board fixing device as claimed in claim 1 is characterized in that: a side of the perforation of described circuit board is offered at least one pilot hole, and opposite side is offered a through hole.

3. circuit board fixing device as claimed in claim 1, it is characterized in that: the fixed leg of described loading plate comprises that one is used for the bottom, of support circuit plate upwardly extending neck and extends upward and can pass the head of the perforation of circuit board from neck from the bottom, and the diameter of described neck is less than the diameter of bottom and the diameter of head.

4. circuit board fixing device as claimed in claim 3 is characterized in that: the fixed orifice of described shell fragment comprises a block button hole of neck that can be used for the described fixed leg of buckle for the entrance hole and that the head of described fixed leg pass.

5. circuit board fixing device as claimed in claim 4 is characterized in that: first kink of described shell fragment is established a surface level of head that is used for the support fixation post at the block button hole place of fixed orifice.

6. circuit board fixing device as claimed in claim 4 is characterized in that: first kink of described shell fragment is established an inclined-plane of head of fixed leg that is used for the support bearing plate at the block button hole place of fixed orifice.

7. circuit board fixing device as claimed in claim 2, it is characterized in that: described shell fragment also comprises second kink from the oblique bending down of an end of first kink extension, the through hole of the described second kink corresponding circuits plate dashes establishes a spacer, and the pilot hole of the installing department corresponding circuits plate of described shell fragment dashes establishes at least one prominent tip.

8. circuit board fixing device as claimed in claim 7, it is characterized in that: described shell fragment is from an end of described second kink extension that stretches out, described circuit board is established a ground lug in a side of perforation, and the ground lug of the extension corresponding circuits plate of described shell fragment is established at least one projection.